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Finding the Fourth Proportional to 968.94, 1,452.02 and 763.92

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Solution

The fourth proportional to 968.94, 1,452.02 and 763.92 is: 1,144.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    968.94 : 1,452.02 = 763.92 : x
  2. Step 2: Convert to fraction form
    968.94/1,452.02 = 763.92/x
  3. Step 3: Cross multiply
    968.94x = 1,452.02 × 763.92
  4. Step 4: Simplify right side
    968.94x = 1,109,223.30
  5. Step 5: Solve for x
    x = 1,109,223.30/968.94
  6. Step 6: Final answer
    x = 1,144.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.